Employers who wish to employ alien crewmembers to perform longshore activities at U.S. ports must file an attestation with Department of Labor that the use of alien crewmembers is the prevailing practice for the activity at the port, that there is no strike or lockout at the place of employment, and that notice has been given to U.S. workers, or their representatives. Special procedures have been established for Alaska. Once the Department of Labor accepts the attestation for filing, it notifies the Department of Homeland Security. The employer may then utilize alien crewmembers for the longshore work at the location(s) cited in the attestation in accordance with statutory requirements and regulations.